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Helianthus praetermissus

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Helianthus praetermissus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Helianthus
Species:
H. praetermissus
Binomial name
Helianthus praetermissus

Helianthus praetermissus is a rare and probably extinct North American species of sunflower, with the common names New Mexico sunflower[1] and lost sunflower. It is known from only one specimen collected in 1851 in Cibola County in western New Mexico, and not seen since.[2][3]

Helianthus praetermissus is (was?) an annual herb with a slender, unbranching stem 90 cm (3 feet) tall. It has (had) a single flower head with yellow ray florets surrounding red disc florets.[3]

References

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  1. ^ USDA, NRCS (n.d.). "​Helianthus praetermissus​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 6 July 2015.
  2. ^ Biota of North America Program 2014 county distribution map
  3. ^ a b New Mexico Rare Plants, University of New Mexico, Helianthus praetermissus (Lost sunflower) includes description, ecological and historical information, and photo of the only known specimen